Toward Enantiomerically Pure β-Seleno-α-amino Acids via Stereoselective <i>Se</i>-Michael Additions to Chiral Dehydroalanines
作者:Paula Oroz、Claudio D. Navo、Alberto Avenoza、Jesús H. Busto、Francisco Corzana、Gonzalo Jiménez-Osés、Jesús M. Peregrina
DOI:10.1021/acs.orglett.0c03832
日期:2021.3.19
Se-nucleophiles to a chiral bicyclic dehydroalanine (Dha) are described. The methodology is simple and does not require any catalyst, providing exceptional yields at room temperature, and involves the treatment of the corresponding diselenide compound with NaBH4 in the presence of the Dha. These Se-Michael additions provide an excellent channel for the synthesis of enantiomerically pure selenocysteine (Sec)
描述了第一个完全化学和非对映选择性 1,4-共轭加成Se亲核试剂到手性双环脱氢丙氨酸 (Dha) 上。该方法简单且不需要任何催化剂,在室温下可提供出色的收率,并且涉及在 Dha 存在下用 NaBH 4处理相应的二硒化物化合物。这些Se- Michael 添加物为合成对映异构纯硒代半胱氨酸 (Sec) 衍生物提供了极好的渠道,这对化学生物学应用具有巨大潜力。